Tessera's OptiML WLC technology makes it possible for cameras to be manufactured
at the wafer level, drastically reducing the size and total bill of material
cost of camera modules. As a result of these and other significant benefits,
Tessera is providing the electronics industry a powerful tool for integrating
cameras into a wider range of electronic products.
Tessera's solution is designed to overcome the cost, size and manufacturing
roadblocks facing the industry as cameras become pervasive in mobile phones
and other electronics. Using OptiML WLC technology, thousands of lenses are
manufactured simultaneously on a wafer, and then bonded at the wafer level to
create the optical element of the camera.
The result is simplified assembly and up to 30% cost savings for the optical
component of the camera module. OptiML WLC technology also reduces the size
of the camera to a minimum, delivering up to 50% size reductions over conventional
camera modules in camera phones today. Tessera's recently acquired Eyesquad
technology can be easily integrated into the OptiML WLC solution, providing
advanced auto-focus and digital optical zoom without the use of moving parts,
resulting in greatly enhanced camera functionally and reliability at lower costs
and smaller form factors.
According to Bruce McWilliams, Tessera's Chairman, President and CEO, "We
believe utilizing a wafer-level camera manufacturing technology is the most
viable path to overcoming the challenges facing the industry today. With our
acquisitions of Shellcase, Digital Optics and Eyesquad, we have assembled what
we believe to be the strongest portfolio of camera optic technologies in the
marketplace. For nearly two decades, Tessera has pioneered technologies that
have resulted in smaller, better performing electronic products. We are continuing
in that tradition with today's announcement, and we believe our OptiML wafer
level camera technology represents a significant leap forward in the development
of highly integrated, lower cost optics for consumer and other electronics."
The market for cameras in electronic products such as cellular phones, laptops,
PDAs, and security electronics continues to show strong growth. The mobile phone
camera market alone is estimated to grow from 660 million units in 2006 to over
1.1 billion units in 2011, according to Gartner Dataquest. Said Jim Walker,
Vice President of Research, Semiconductor Manufacturing, Gartner Dataquest,
"The world's most influential cell phone makers have challenged the industry
for a wafer level camera solution. There are many key benefits realized when
applying semiconductor processes to optics, including significant cost and size
reductions. The challenge the industry faces is to integrate greater levels
of functionality in smaller form factors at acceptable levels of cost. This
new wafer-level approach to miniaturization provides an innovative solution
for meeting these objectives."
About OptiML Wafer Level Camera Technology
OptiML WLC technology can be used for a wide range of camera phone applications,
and is designed to scale to multi-mega pixel resolutions. Wafer level techniques
are used to build thousands of lenses on a wafer at the same time. Multiple
lens wafers are then aligned and bonded at the wafer level using Tessera's OptiML(TM)
WaferStack(TM) technology. The need for costly manual focusing is removed due
to the accuracy of the WaferStack(TM) process. The bonded lens wafers are then
diced into individual lens modules, and each lens module is mounted on top of
a packaged image sensor.
Reflow compatible materials are used to build the lenses. The result is a camera
module that can be mounted directly onto the phone board using the same reflow
process used to assemble other electronics. Assembly through reflow results
in lower labor cost, part count and cycle time when incorporating the camera
into the phone.
For fixed focus applications, traditionally used for VGA to 2 mega pixel resolution
camera phones, OptiML WLC eliminates the need for manual focus adjustment of
the cameras' optical elements. For 2 mega pixel resolution and above, advanced
auto focus and digital optical zoom can be integrated into the OptiML WLC solution
using Eyesquad technology without the use of moving parts.
Using its OptiML WLC technology, Tessera has developed the world's first reflowable
wafer level camera designed to meet the specifications of today's VGA camera
phones. For additional details on the OptiML WLC platform, please go to Tessera's
website: www.tessera.com and click on the online media kit.
Tessera is offering OptiML WLC technology for license to the global electronics
industry. Tessera is also offering related services, such as technology transfer,
training and design services.
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